drecon-unity/Assets/RotateCamera.cs

using Cinemachine;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RotateCamera : MonoBehaviour
{
    // Start is called before the first frame update

    public CinemachineVirtualCamera m_VirtualCamera;
    [SerializeField]
    private float m_Rotation;

    public float m_RotationSpeed;

    // Update is called once per frame
    void Update()
    {
        m_Rotation += Time.fixedDeltaTime * m_RotationSpeed;

        if (m_VirtualCamera != null)
        {
            m_VirtualCamera.GetCinemachineComponent<CinemachineOrbitalTransposer>().m_XAxis.Value = m_Rotation;
        }
    }
}